374330e2 |
1 | #include <windows.h> |
5b80d07f |
2 | #ifndef AUTO_WINSOCK |
3 | #ifdef WINSOCK_TWO |
4 | #include <winsock2.h> |
5 | #else |
6 | #include <winsock.h> |
7 | #endif |
8 | #endif |
374330e2 |
9 | #include <stdio.h> |
10 | #include <stdlib.h> |
11 | #include "putty.h" |
12 | |
13 | /* My own versions of malloc, realloc and free. Because I want malloc and |
14 | * realloc to bomb out and exit the program if they run out of memory, |
15 | * realloc to reliably call malloc if passed a NULL pointer, and free |
16 | * to reliably do nothing if passed a NULL pointer. Of course we can also |
17 | * put trace printouts in, if we need to. */ |
18 | |
19 | #ifdef MALLOC_LOG |
20 | static FILE *fp = NULL; |
21 | |
22 | void mlog(char *file, int line) { |
c662dbc0 |
23 | if (!fp) { |
374330e2 |
24 | fp = fopen("putty_mem.log", "w"); |
c662dbc0 |
25 | setvbuf(fp, NULL, _IONBF, BUFSIZ); |
26 | } |
374330e2 |
27 | if (fp) |
28 | fprintf (fp, "%s:%d: ", file, line); |
29 | } |
30 | #endif |
31 | |
32 | void *safemalloc(size_t size) { |
33 | void *p = malloc (size); |
34 | if (!p) { |
35 | MessageBox(NULL, "Out of memory!", "PuTTY Fatal Error", |
36 | MB_SYSTEMMODAL | MB_ICONERROR | MB_OK); |
37 | exit(1); |
38 | } |
39 | #ifdef MALLOC_LOG |
40 | if (fp) |
41 | fprintf(fp, "malloc(%d) returns %p\n", size, p); |
42 | #endif |
43 | return p; |
44 | } |
45 | |
46 | void *saferealloc(void *ptr, size_t size) { |
47 | void *p; |
48 | if (!ptr) |
49 | p = malloc (size); |
50 | else |
51 | p = realloc (ptr, size); |
52 | if (!p) { |
53 | MessageBox(NULL, "Out of memory!", "PuTTY Fatal Error", |
54 | MB_SYSTEMMODAL | MB_ICONERROR | MB_OK); |
55 | exit(1); |
56 | } |
57 | #ifdef MALLOC_LOG |
58 | if (fp) |
59 | fprintf(fp, "realloc(%p,%d) returns %p\n", ptr, size, p); |
60 | #endif |
61 | return p; |
62 | } |
63 | |
64 | void safefree(void *ptr) { |
65 | if (ptr) { |
66 | #ifdef MALLOC_LOG |
67 | if (fp) |
68 | fprintf(fp, "free(%p)\n", ptr); |
69 | #endif |
70 | free (ptr); |
71 | } |
72 | #ifdef MALLOC_LOG |
73 | else if (fp) |
74 | fprintf(fp, "freeing null pointer - no action taken\n"); |
75 | #endif |
76 | } |